HENKEL & GROSSE Attrib.
Art Deco Necklace 
Chromium plated brass, black enamel & galalith
Length: 46 cm (18 in) Width: 3.2 cm (1.2 in)
Made for the French market, German, c.1931
Literature cf. Art Deco Schmuck, Jakob Bengel, 2002
Christianne Weber, pendant illustrated p.56 no 71